Home / 3,161.66-4,364.94-2,100.86

Finding the Fourth Proportional to 3,161.66, 4,364.94 and 2,100.86

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Solution

The fourth proportional to 3,161.66, 4,364.94 and 2,100.86 is: 2,900.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.66 : 4,364.94 = 2,100.86 : x
  2. Step 2: Convert to fraction form
    3,161.66/4,364.94 = 2,100.86/x
  3. Step 3: Cross multiply
    3,161.66x = 4,364.94 × 2,100.86
  4. Step 4: Simplify right side
    3,161.66x = 9,170,127.85
  5. Step 5: Solve for x
    x = 9,170,127.85/3,161.66
  6. Step 6: Final answer
    x = 2,900.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.